Upgrade Kit, X1 Evolution, Cobra Off-Road. 21400
AXE Rossi Cobra X1 upgrade kit 21400
will upgrade a Cobra 198R21 or Mamba 202R21 engine to the Cobra X1 Evolution
214R21 engine.
The Upgrade
kit includes include piston/sleeve and connecting rod assembly, rear ceramic ball bearing, turbo
glow plug head button, and crankshaft.
Shipping & Handling
|  | US Shipping |
$6.00 USPS First-Class Mail®
|  | International Shipping |
$12.00 USPS Priority Mail Intl
|